DS2745U+ Maxim Integrated Products, DS2745U+ Datasheet - Page 5

• Manufacturer Part Number: DS2745U+
• Description: IC BATT MONITOR I2C 8-UMAX
• Manufacturer: Maxim Integrated Products

Specifications of DS2745U+

• Function: Fuel, Gas Gauge/Monitor
• Battery Type: Lithium-Ion (Li-Ion); Nickel-Metal Hydride (NiMH)
• Voltage - Supply: 2.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
• Product: Fuel Gauges
• Operating Supply Voltage: 2.5 V to 5.5 V
• Supply Current: 70 uA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Charge Safety Timers: No
• Mounting Style: SMD/SMT
• Temperature Monitoring: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIN DESCRIPTION
Figure 2. BLOCK DIAGRAM
PIN
1
2
3
4
5
6
7
8
SYMBOL
CTG
SDA
SNS
SCL
V
PIO
V
VIN
SS
DD
Serial Clock Input. 2-Wire clock line. Input only. Connect this pin to the CLOCK
terminal of the battery pack. Pin has an internal pulldown (I
disconnection.
Serial Data Input/Output. 2-Wire data line. Open-drain output driver. Connect this pin
to the DATA terminal of the battery pack. Pin has an internal pulldown (I
disconnection.
General Purpose Input/Output. Open-drain output driver with input sense. Connect
to a pull up resistor for bidirectional operation.
Sense Resistor Connection. Connect to the negative terminal of the battery pack.
Connect the sense resistor between V
Device Ground. Connect to the negative terminal of the Li+ cell outside the cell
protection FETs. Connect the sense resistor between V
Connect to Ground. Connect to the negative terminal of the Li+ cell outside the cell
protection FETs.
Voltage Sense Input. The voltage of the Li+ cell is monitored through this input pin.
Power-Supply Input. Connect to the positive terminal of the Li+ cell through a
decoupling network.
5 of 15
FUNCTION
SS
and SNS.
DS2745 Low-Cost I
SS
and SNS.
PD
) for sensing
2
C Battery Monitor
PD
) for sensing